Calculate the mass of ice in tons
The land area of Greenland is 840,000 mi2 with 132,000 mi2 free of ice. The average thickness of ice is 5000 ft. The density of the ice is 0.917 g/ml. Calculate the mass of ice in tons. Please explain steps.
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Refrigerant-134a enters the expansion valve of a refrigeration system at 160psia as a saturated liquid and leaves at 30psia. Determine the temperature and internal energy changes across the valve.
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